Hello there !! 

Following our testing with the ZOHO Parent-Child BETA version , we saw that notifications are being sent out in the Parent and with  all the x number of child tickets created. Same during the closure.  i.e the customer is bombarded with emails and hea can get frustrated.  We also could not find a way to place a rule to send out notifications only when a Parent ticket is created and closed.  How is possible to achieve a Parent only notification?